3Vdcmotor Specifications: 1) Diameter: 4mm 2) Main dimensions: (L) 14.3 x (W) 4.5 x (H) 4.3cm 3) Rated voltage: 3.0V DC 4) Rated current: 100mA max. 5) Rated speed: 11,000 +/- 2,500rpm 6) Starting voltage: 2.6V DC 7) Stall current: 130mA max 8) Operating voltage: 2.6-3.6V DC 9) Applications: mobiles, pagers, PDAs ,medical equipments and other vibration products 10) Weight: 0.78g